Workers of Anglo American Platinum, the world's top platinum producer, will down tools after the company handed out 3 300 dismissal notices.
Goldplat chief executive Russell Lamming has stepped down and Ian Visagie will take over in the interim with immediate effect, says the company.
The state's interests have gone head-to-head with those of investors in the wrangling over proposed changes to South Africa's mining laws.
A wage settlement between gold producers and a few unions in the gold industry has been agreed upon, said the Chamber of Mines.
Gold producers Evander Gold and Village Main Reef have reached agreement with the NUM and the United Association of SA, says the Chamber of Mines.
The NUM says reports that it dropped its demands are not true, adding that its strike in the gold sector has had an "overwhelming" response.
Union leaders have warned that mine owners' handling of pay talks could provoke violence in Tuesday's strikes in the gold sector.
Mining unrest has rattled South Africa, but turmoil has been a hammer blow to the platinum belt, calling into question the future of an entire city.
While the NUM has dismissed gold miners' final wage increase offer, Solidarity says it needs more time to consult with its members first.
Gold mining companies have tabled their final wage offer to all labour unions within the sector, offering a basic increase of 6.5%.
Around 2 000 mineworkers converged at an Anglo American Platinum mine over plans to cut 6 900 jobs amid unrest in the sector.
At least 1 600 jobs could be affected at Sibanye Gold as it restructures its support services, says the company.
The National Union of Mineworkers will not take part in the Marikana commemorations, it said.
The Association of Mineworkers and Construction Union has been formally recognised as the majority union at Lonmin.
SA's coal trading has hit a six-week high as buyers stocked up on the mineral ahead of their winters after unions declared a wage dispute.
Sibanye Gold says it will refuse to raise wages above the rate of inflation as gold producers and unions remain locked in talks over pay.
Goldfield's decision to spin its SA operations off and create Sibanye Gold appears to be paying off after it reported a 63% profit increase.
After investing hundreds of millions on its Blyvooruitzicht mine, the gold producer has declared the operation unsustainable.
The bodies of two mineworkers trapped underground after a rockfall at Anglo American Platinum's Bathopele mine in Rustenburg have been located.